Exercise: Electromagnetic Field Theory

Questions for: Electromagnetic Field Theory

Which antenna is frequently used for local area transmission at UHF/VHF?
A:
Ground monopole
B:
Turnstile antenna
C:
Slot antenna
D:
Loop antenna
Answer: A
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When there is rapid attenuation of field inside the conductor, the field current are concentrated close to the surface of the conductor; this phenomenon is called
A:
skin effect
B:
EM concentration effect
C:
Faraday's effect
D:
Ohm's effect
Answer: A
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Which of the following relations is valid for a spherical surface?
A:
B:
C:
D:
None of the above
Answer: C
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The portion of the atmosphere closest to ground is called ionosphere.
A:
True
B:
False
C:
D:
Answer: B
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The polarization phenomena in Faraday rotation
A:
is non-reciprocal
B:
exists along perpendicular direction
C:
exists along the axis of array
D:
does not exist
Answer: A
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